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Analysis
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max time kernel
94s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
13/11/2024, 11:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
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Size
3.6MB
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MD5
75b67e3ddf960879f0bfe4db7f2e61b0
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SHA1
323759fbb5a65c89351f8b0ac35c5e8c9e344b0c
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SHA256
37d10c32a5efe52fc00b976723dfd1eb1a1851e9cbbde5e49d6ba6d3e1848f89
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SHA512
17f3858651831973b733931ebc9c19f3b8356107af7328d90cc30373a294b8c17237f64ad04c0c906cc2b5519b390c23941397cadb347621c261f9b63d695c56
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SSDEEP
49152:0QusxfsjLFBjCUYamvmf6L7ePUZ94p/D3WoPt5Yg0O7Qzp:5pp
Malware Config
Extracted
meduza
109.107.181.162
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anti_dbg
true
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anti_vm
true
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build_name
420
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extensions
none
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grabber_max_size
1.048576e+06
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links
none
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port
15666
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self_destruct
true
Signatures
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Meduza Stealer payload 46 IoCs
resource yara_rule behavioral2/memory/4776-1-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-12-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-8-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-18-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-20-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-15-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-14-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-13-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-7-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-11-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-5-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-6-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-2-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-0-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-30-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-29-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-33-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-34-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-40-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-41-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-42-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-36-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-37-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-35-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-48-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-75-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-79-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-86-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-93-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-84-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-78-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-72-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-71-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-65-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-56-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-54-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-53-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-50-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-47-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-44-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-66-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-43-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-60-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-59-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-96-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza behavioral2/memory/4776-97-0x0000000140000000-0x00000001401FA000-memory.dmp family_meduza -
Meduza family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\12.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\14.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.ipify.org 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1468 set thread context of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3656 cmd.exe 1596 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 1596 PING.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe Token: SeImpersonatePrivilege 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 1468 wrote to memory of 4776 1468 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 83 PID 4776 wrote to memory of 3656 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 92 PID 4776 wrote to memory of 3656 4776 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe 92 PID 3656 wrote to memory of 1596 3656 cmd.exe 94 PID 3656 wrote to memory of 1596 3656 cmd.exe 94 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1468 -
C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exeC:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:4776 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2024-11-13_75b67e3ddf960879f0bfe4db7f2e61b0_ryuk.exe"3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3656 -
C:\Windows\system32\PING.EXEping 1.1.1.1 -n 1 -w 30004⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1596
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1